If you live your life with constant fear and distrust, you will never experience joy and peace. Don't look for people to cheat you or cheat on you, but instead believe and have faith in others, specifically your spouse or mate. Otherwise you will continually look out for and find ways to never become close to the one person in this earth that God would have you be closest to. It's a way of putting up walls and keeping your love at a distance, which may feel safe, but you will never experience the fullness and joy a marriage should be. I believe you live with either fear and distrust OR with joy and peace in your soul. Which would you rather have and which replicates Jesus? Choose the path and decide now so you can live life to the fullest and model the way for others.